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I want to talk about quadrant score.

I know a lot of people are using quadrant to get an idea of system performance, and I did some playing the other day so I wanted to discuss what I noticed.
On monday I went into the verizon store to use my upgrade to get a new phone. Coming from the droid incredible, I was going to stay with HTC as I love sense and I love HTC phones.
so i started installing quadrant on all the phones I was interested in, the Dinc2, thunderbolt, and charge. This store also sells att phones as well, so i installed quadrant on the HTC desire and the sansung infuse.
the HTC phones all scored almost 2x as high as the samsung phones. the thunderbolt hit 1980 or some craziness, while the DCharge and the Dinfuse got about 950.
so initially i thought "wow those are slow im getting an HTC"
but then i WATCHED the quadrant run on the phones.
when pressing start at the same time on the HTC thunderbolt and the Charge, the Thunderbolt got into the graphical part of the test about 2 seconds faster. however, when you watch the framerates on the renderings, the charge is easily 2x faster. during the "walk down the hallway" part the thunderbolt was getting 15-17fps while the charge was getting 30-40, during the "dna" rendering, the thunderbolt was again about 12-15 while the samsung was in the 30s.
so.. what did that mean? I wanted to find out. I installed several live wall papers on each phone, and yup... the samsung was able to run the live wallpapers without bogging down the UI, the same live wallpaper on the thunderbolt cause sense to skip a little when switching screens.
however, i noticed that when the samsung is downloading and installing apps, it starts to become pretty laggy until the install is over.
Overall thoughts:
i think quadrant is ONLY measuring the CPU power of the device. The thundebolt seems to have better processing ability when it comes to CPU intensive tasks, like installing programs or unzipping files, but it seems to severely lack behind in GPU rendering. While the Samsung is lagging behind in the CPU department and doing very well on the GPU end.
All in all i would say that the difference between processing power is less drastic between the 2 than the GPU performance between the 2.
I hope this helps some of you out there when trying to interpret Quadrant scores and what they actually mean.
Even with a quadrant score of nearly double the droid charge, it still struggles to run a simple live wallpaper as easily as the charge can.

The Thunderbolt and other HTC phones use the Snapdragon processor, which is a great CPU, but not so great GPU, hence the bad frame rates. The reason that the Samsung phones bog down when installing stuff is more from the fact that Samsung created a proprietary file system based on FAT to use for everything, and the IO performance isn't so great. Voodoo Lagfix can really speed up the IO of the phone, reducing the lag you see and also bringing the Quadrant numbers up closer to that of the Thunderbolt, etc. I'm getting 1700-1800 in Quadrant on my Charge, not that the scores mean anything.

imnuts said:
The Thunderbolt and other HTC phones use the Snapdragon processor, which is a great CPU, but not so great GPU, hence the bad frame rates. The reason that the Samsung phones bog down when installing stuff is more from the fact that Samsung created a proprietary file system based on FAT to use for everything, and the IO performance isn't so great. Voodoo Lagfix can really speed up the IO of the phone, reducing the lag you see and also bringing the Quadrant numbers up closer to that of the Thunderbolt, etc. I'm getting 1700-1800 in Quadrant on my Charge, not that the scores mean anything.
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that's interesting, I had been reading about the voodoolagfix but wasn't entirely sure what was going on with that.
What we need is a phone with HTCs processor and Samsungs GPU lol.
So what causes Iphone to be soo incredible smooth? I hate apple, but i have to admit that their UI is incredible smooth and damn near flawless on screen transitions and GPU rendering. It seems like almost all android phones are more powerful hardware wise, yet even the smoothest UIs out there still stutter compared to Apples UI

msticlaru said:
... What we need is a phone with HTCs processor and Samsungs GPU lol ...
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I think when they release that chipset, they should call it "Tegra2".

msticlaru said:
that's interesting, I had been reading about the voodoolagfix but wasn't entirely sure what was going on with that.
What we need is a phone with HTCs processor and Samsungs GPU lol.
So what causes Iphone to be soo incredible smooth? I hate apple, but i have to admit that their UI is incredible smooth and damn near flawless on screen transitions and GPU rendering. It seems like almost all android phones are more powerful hardware wise, yet even the smoothest UIs out there still stutter compared to Apples UI
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Probably like you noted during the Quadrant tests, Apple's GUI takes full/more advantage of the GPU since they control both the hardware and software. There aren't multiple chipsets out there to cater, so all the programming efforts can be concentrated to just one setup.
IIRC, that's the job of Android GB/ICS. The base OS is there, now little tweaks need to be made to optimize for the various hardware. Well get there soon enough, I hope.

[Q] What should I be excited about in my next Nexus device?

I've had my Nexus S since official launch day in late 2010. I still love it. I've been mildly tempted to replace it with the Galaxy Nexus a few times.
I'm somewhere in the middle between amateur and power-user. I enjoy rooting my device and installing custom roms, but I don't go beyond that. Also, once I find a rom that works well for me, I generally keep it for several months or more.
I'm trying to figure out what is potentially on the horizon that I should find exciting in the mobile device world - any thoughts? I'm asking more about things that actually improve my daily use of the phone. Right now, I have email and calendar push-sync (important for work), fast web browsing pretty much anywhere I go (typically getting 3-6Mbps anywhere I am), and can easily stream movies and music. What could I ask for that would actually improve my phone experience?
1. Bigger screen - obviously has its ups and downs - for me wouldn't make any positive impact.
2. Higher resolution - this is cool, and was one of the main reasons I was tempted by Galaxy Nexus, but again, wouldn't actually make any difference to me. I don't have any interest in gaming on my phone, beyond Angry Birds or Cut the Rope-type games.
3. Better camera - always nice, but for my use, the camera on Nexus S is more than adequate.
4. Faster data speeds - wouldn't help me at all. As long as I can stream TV and movies (which I already can), I have no need for anything faster, particularly if batter life is impacted.
5. Updated OS - this is probably what would tempt me most, due to my incessant need to always run the newest software available. Not sure what actual improvements it will have, though...
I guess my point is, I look at the latest and greatest devices out there (GS3, OneX, etc.), and I think to myself, "If I had that device, what benefits would I have compared to my Nexus S". And honestly, I can't think of a single one.
Any thoughts!
Thanks!

I think almost the same as you. Thinking about change my Nexus S, but it make almost everything I need already. If I change, it's only too see something new, hehe.

I think part of this speaks to how great the Nexus S is. In nearly 18 months of bigger screens, dual-core and quad-core, higher resolution, bigger batteries, LTE, etc., I've barely even been tempted to switch. I think that Google pushing out ICS to the Nexus S so early was a huge "lift" to my deciding to hang onto it for so long.

The nexus S has a more compact design and better audio both from speaker and headphones. The camera isnt better on the galaxy nexus, only video recording is. The screen is higher resolution but has so many horror stories about it. I personally didnt like the colors that much on the galaxy nexus especially the whites which were the worst I have ever seen on an AMOLED screen. But apparently there are good and bad screens of galaxy nexus so maybe I saw the bad one.
The most tempting thing for me is dual core CPU and 1GB ram, 2 areas where the nexus S is notably behind now and it really does enhance smartphone experience to have dual core CPU and more ram. And obviously it will get updates faster in the future provided the nexus S gets anything at all which it may not after 4.0.4.
The galaxy nexus also looks so damn epic, one of the best looking android phones for sure. And textured plastic back >>> glossy plastic anyday.
The disappointing parts of the galaxy nexus for me are,
- screen is not as good as reviews would have you believe
- speaker sound is disastrous
- Not much of an upgrade in GPU from nexus S, just higher clocks
- too big
I suppose since you are an i9020 owner it would be easier for you to switch to galaxy nexus since you are used to SAMOLED screens. I have an i9023 and just love the SC-LCD on it, the galaxy nexus screen seems like too many compromises for those infinite blacks.

same dilemma
Same issue as me, not sure whether I should upgrade or not. I've always been a "nexus behind" in that I held onto the N1 when the NS came out and only bought the NS when the GN came out. It's been cheaper for me since I had to pinch money in college.
Now that I have a job and income, I'm really tempted to finally catch up and buy the GN even though I'm extremely satisfied with my NS...

Gambler_3 said:
The most tempting thing for me is dual core CPU and 1GB ram, 2 areas where the nexus S is notably behind now and it really does enhance smartphone experience to have dual core CPU and more ram. And obviously it will get updates faster in the future provided the nexus S gets anything at all which it may not after 4.0.4.
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For "daily driving" of web browsing/email/calendar/movies/music, how does dual core CPU and more RAM make a difference? Maybe faster app switching, smoother OS performance?

ddb540 said:
For "daily driving" of web browsing/email/calendar/movies/music, how does dual core CPU and more RAM make a difference? Maybe faster app switching, smoother OS performance?
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Web browsing can max up nexus S ram pretty quickly which causes lag and launcher redraw on exit. Web browsing is perhaps the biggest advantage of dual core and 1GB ram especially if you like to use desktop versions.
There can be serious lag in doing anything when an app is being updated in the background I had to turn off automatic update for that and I think the single core CPU might be to blame for that.
With more ram you can run more third party apps that have background services. The ram is perhaps the biggest limitation of nexus S. It's almost impossible to play games smoothly when you are online on skype because it eats so much ram.
And lastly there are a few games now which lag on nexus S and I believe again the ram or CPU are to blame for that as we have very good GPU for our resolution.
But when it comes to screen and sound, nexus still holds its own against the new phones and provides a very satisfying multimedia experience.
I am personally still thoroughly satisfied with nexus S overall and will wait for the next nexus phone(or series of phones) to come.

happy with my nexus s, but if I had the chance and was able to afford it, I'd ditch it for the GS3 any day
why i want to upgrade:
1. more RAM, power.
---------- DEFINITELY something I found myself always wanting while watching videos on the browser.
---------- Annoying waiting for important apps such as dialer/camera to load up.
2. larger, hd screen. (especially for watching videos; something i do often)
3. camera

I also just wait for next nexus this december..
Buying galaxy nexus seem not worth it for me..
Sent from my GT-I9100 using Tapatalk 2

I agree about waiting on the next Nexus release. I really like my NS still and I skipped out on the Galaxy Nexus. Now that we know a SERIES of Nexus's ( :what: ) are coming I'm definitely holding out. The S3 sounds great but the new Nexus line may out shine that later this year.
Sent from my Nexus S using xda premium

I'd have to agree with everyone about the NS shortcomings when compared to today's phones. To add to the list is the internal sdcard. I will NEVER get another phone without a removable sdcard. 16GB is just not enough.
Unfortunately, my NS is also sensitive to overclocking and crashes often even with raised voltage. Anyway, it's still a good phone holding it's own for 18mos.
PS: i, too, will wait for the next Nexus.
Sent from my Crespo using xda premium

I would also say ram and cpu are pretty big improvements.. Although I'm waiting for the next nexus as well. It's only a few months away and it's gonna blow the gnex out of the water for sure.
Sent from my Nexus S using XDA

Gambler_3 said:
Web browsing can max up nexus S ram pretty quickly which causes lag and launcher redraw on exit. Web browsing is perhaps the biggest advantage of dual core and 1GB ram especially if you like to use desktop versions.
There can be serious lag in doing anything when an app is being updated in the background I had to turn off automatic update for that and I think the single core CPU might be to blame for that.
With more ram you can run more third party apps that have background services. The ram is perhaps the biggest limitation of nexus S. It's almost impossible to play games smoothly when you are online on skype because it eats so much ram.
And lastly there are a few games now which lag on nexus S and I believe again the ram or CPU are to blame for that as we have very good GPU for our resolution.
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Good explanation, thanks! Glad to hear that the RAM and CPU improvements will make a nice difference in my next device, even for daily tasks.

LordPhong said:
To add to the list is the internal sdcard. I will NEVER get another phone without a removable sdcard. 16GB is just not enough.
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What do you use to fill all this storage? I used to hold music on my phone and quickly maxed out the 16GB limit, but Google Music has completely obviated my need to hold files locally.

ddb540 said:
What do you use to fill all this storage? I used to hold music on my phone and quickly maxed out the 16GB limit, but Google Music has completely obviated my need to hold files locally.
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Some people aren't lucky enough to have multi-GB or unlimited data plans, let alone decent service to begin with. I'm also weary of sound quality with many online services too - i know what's going on with my own files.

al_madd said:
I also just wait for next nexus this december..
Buying galaxy nexus seem not worth it for me..
Sent from my GT-I9100 using Tapatalk 2
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Couldnt agree more with this.
I think it would be wiser if waiting for the next nexus
Gnex is good but is not good enough

For some reason I've never actually been attracted to the thought of replacing my NS with GN. I'm happy with my NS and recently, I've been tempted to get the SGS3. I've been tempted but my NS does everything I need and well, I think I'll wait till the next Nexus device shows up. Long live NS!

[Q] Why do Android tablets lag so heavily?

(bear in mind that I own an iPhone 3GS, iPad 3, Nexus S as my main phone and HD2)
Every time I try Android tablets somewhere, on a roadshow of the manufacturer or at a department store, they lag and stutter heavily at simple tasks or just flicking around the app drawer. No matter what brand they are, be it a Sony, Toshiba, Acer, on Honeycomb or ICS, they just lag. Even the newest Tabs from Samsung suffer from lag too, while the iPad flies.
How can they ever sell if the user experience is so laggy at the first try, in regards to normal users' perspective - they just care whether it's smooth unlike us gizmos - and why are they so laggy despite having dual-core processors and a ton of RAM inside while phones with lower specs run like butter?

I don't know why.. all I know is that I currently use a Samsung Galaxy Tab 2 10.1 that was laggy on 4.0.3 until I installed Cyanogenmod 10 preview which put it at 4.1.1 ..
Buttery smooothh now :good:
Also I've seen some good reviews on the experience with the upcoming Samsung Note 10.1

bcoz android is eating heavy ram so it lags

Try any of the Asus transformer tablets, they are fast.
Sent from my SGH-T959 using xda app-developers app

Gam3boy said:
bcoz android is eating heavy ram so it lags
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So tell me why phones run without lag? Android is not the reason why it lags, he was asking specifically about tablets.
I'm not a genius, but it might have to do with the size of the screen coupled with screen resolution. I've tried out some galaxy tab 10.1s and noticed the lag you're talking about
Sent from my MB508 using xda premium

Lag compare with what? Phone? Another OS? Widget and multitasking has a lot to take into consideration too. I am sure Android will be a lot faster if it doesn't have true multitasking

demonoflust said:
Lag compare with what? Phone? Another OS? Widget and multitasking has a lot to take into consideration too. I am sure Android will be a lot faster if it doesn't have true multitasking
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I don't think this is the root cause, the root cause is something to do with android's coding as it was never intended to Handel hardware gpu acceleration across the board with gpu and this is where lag occurs.
Gpu and CPU wasn't coded to work together so when google released 4.0, it's way a bit of a jerky mess as the os would lag for a few seconds and continuous lag when doing slow scrolling. It can also be seen with contacts list where a lot of the photos appear. The gpu only seems to render a few layers of the os while CPU struggles to load picture image at once so contact list lag was still present and that same goes with the browser.
Project butter was designed to aggressively ramp up cpu to maximum speed when users touched their finger on it hence smoother pinch to zooms as CPU tries to process information I.e. content while the gpu renders graphical side of it hence less lag compared to ics, it can be seen with pinch to zoom.
Notice how 4.0s zooms are pitch, lag, pinch, lag, pinch lag while 4.1's pinches has a relatively smaller lag between actually pinching and lagging?
It's more to do with reducing legacy between gpu and CPU response time. Which is googles approach to fixing lag while still keeping developers apps unbroken.
Ios and windows 8 for arm renders it differently, it's more to do with framework linking the two integrations together. CPU and gpu works together like bus link I,e. reducing legacy while accessing each others resources hence virtually no lag (not 100%, but maybe 97% of the time).
That is why ios runs fairly smooths even on a 412mhz device while android suffers more hick ups even on a 1.8 ghz quad core device with hideously large amounts of ram.
No I don't think cm 10.1 offers a so called "buttery smooth" performance even on the nexus 7 which has a tiny wee bit of hick ups and scroll lag.
Yes I over clocked my old n7 to 1.8ghz

Getting Jelly Bean Buttery Smooth on the Infinity

Hi All,
Having owned a Galaxy Nexus, and getting Jelly Bean some time ago, I was expecting a lot more from Jelly Bean on the Infinity when it came to interface fluidity. My Galaxy Nexus was a lot smoother - transitions and the notification menu especially.
But then I started to notice - in apps - the notification menu is actually very smooth, but not at the home screen. All transitions were still very slow however.
I had quite a bit of a play around and nothing seemed to improve the performance. Then I think I found something, and I want some people to sanity check me. I use Apex launcher (performance was still just as slow with the default launcher). In it's options, you can disable wallpaper completely (which you cannot do on the default launcher).
When I do this...I finally get the greatly improved fluidity I was expecting. It's not perfect, but the difference is huge.
Is anyone else able to confirm this? It seems strange. I was not using live wallpapers...just a static wallpaper. How much difference can a wallpaper make?

High resolution wallpaper can slow down performances due to pictures taking space on the RAM. Thus high definition pictures can take quite a bit of data ~10MB. Though that doesn't seem to be a lot...

Well I have tried using a smaller image, but I expect Android is up-scaling it to full resolution. The anmation was much less smooth. Once I disabled the wallpaper again, animations were smooth again.
Does anyone else use Apex, or a launcher that can disable the wallpaper to test this?

I just use a 1x1 pixel of black, pretty much "removes" the need to draw the wallpaper.

androidxen said:
I just use a 1x1 pixel of black, pretty much "removes" the need to draw the wallpaper.
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Did you notice a perceivable improvement in performance as a result of using that wallpaper? It seems likely that Android will stretch that 1x1 pixel out to fill a large canvas of black, which may not give any performance increase so I would be interested to know.
I would also like to know if I am the only one noticing this difference? Maybe no one else really cares about it except for me!

I use Apex Launcher Pro. I notice no difference whether I'm using wallpaper or not. Everything seems nice and smooth to me.

I would say you shouldn't expect to much from the Infinity. The Nexus 7, being a Nexus device, will always be faster than any other devices out there. The Infinity with it lousy flash storage and a full HD screen will never be able to catch up with the Galaxy Nexus and Nexus 7 in terms of speed and fluidity.

huy_lonewolf said:
I would say you shouldn't expect to much from the Infinity. The Nexus 7, being a Nexus device, will always be faster than any other devices out there. The Infinity with it lousy flash storage and a full HD screen will never be able to catch up with the Galaxy Nexus and Nexus 7 in terms of speed and fluidity.
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I somewhat agree...it is certainly pushing a lot of pixels. So my expectations have not been too high. In fact, I have really been pleasantly surprised. However - for the most part - I don't believe the I/O limitations should be affecting this tablet that much. Obviously there will be some effect...the same issues I was seeing before are still present...but I still do expect some improvement from JB.
That said...I am actually seeing it...but only with the wallpaper disabled. This is what strikes me as odd...it is just a static background image...and it feels like a bug.
Maybe I should just keep it off and wait until Key Lime Pie?

Disabling unused apps and clearing their data helps a lot. If you cannot disable see if you can "uninstall updates" first after that you should be able to. If you're rooted like me you can disable even more stuff using Titanium BU.
The difference? Everything is loaded immediately on startup (i.e. no calender widget that takes 5 sec to show). Balanced mode feels like performance mode, I can go on.

rikc said:
Disabling unused apps and clearing their data helps a lot. If you cannot disable see if you can "uninstall updates" first after that you should be able to. If you're rooted like me you can disable even more stuff using Titanium BU.
The difference? Everything is loaded immediately on startup (i.e. no calender widget that takes 5 sec to show). Balanced mode feels like performance mode, I can go on.
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What benefit is clearing a disabled app's data? My typical method for disabling something is to "freeze" it with TiBU and skip the OS menus altogether. Is there some additional benefit I could gain by clearing the frozen app's data too?

I was one of the people having slowness issues with their device but a couple of days later i figured it out. I went into the settings - apps - running and cached apps list. My ram was down to 100MB at some points. The 1GB of ram doesnt seem to be enough but we need to make due with what we got. So i installed Autostarts and disabled all the startup apps and any other apps i dont need when i change wifi state and all that other useless stuff. Google+ would run almost every 2 seconds, Maps aswell. So i disabled those apps from running at bootup and such. Now my available RAM is at 400MB constantly and it is running crazy fast. Opening the recent apps list and clearing those apps is super fast now. Also disabled some of the animation effects that jelly bean puts in. I personally am more concerned with performance then quality.

I noticed every app has notifications turned on by default (settings/apps). I don't know if it matters but I've been turning it off on everything I don't use notifications with.

+1

GregAndo said:
I somewhat agree...it is certainly pushing a lot of pixels. So my expectations have not been too high. In fact, I have really been pleasantly surprised. However - for the most part - I don't believe the I/O limitations should be affecting this tablet that much. Obviously there will be some effect...the same issues I was seeing before are still present...but I still do expect some improvement from JB.
That said...I am actually seeing it...but only with the wallpaper disabled. This is what strikes me as odd...it is just a static background image...and it feels like a bug.
Maybe I should just keep it off and wait until Key Lime Pie?
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I kinda laugh when I hear that it is pushing a lot of pixels so that's why it isn't smooth.... take the iPad 3 for example higher resolution, crappier specs and crappy iOS but it runs so smooth that it makes me want to trade in my infinite for it. I will have to jailbrake it to be able to do what I like but the experience will be better.... was just playing around with my friends iPad 3 and **** did I get me tinking.....
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app

hit173 said:
I kinda laugh when I hear that it is pushing a lot of pixels so that's why it isn't smooth.... take the iPad 3 for example higher resolution, crappier specs and crappy iOS but it runs so smooth that it makes me want to trade in my infinite for it. I will have to jailbrake it to be able to do what I like but the experience will be better.... was just playing around with my friends iPad 3 and **** did I get me tinking.....
Sent from my ASUS Transformer Pad TF700T using XDA Premium HD app
Click to expand...
Click to collapse
Dude, you should seriously do some homework on Anandtech to say that the iPad 3 has crappier specs. In term of SoCs and graphic performance, the A5X chip in the iPad 3 is the most powerful SoC on a tablet right now, even the upcoming Snapdragon S4 Pro is unable to compete with it. I don't have much love for Apple, but we need to consider facts. If you consider raw computing power, Tegra 3 is even behind the iPad 2. In order to drive that many pixels on the iPad 3, Apple had to include a humongous SoC as well as much bigger battery, which explains why the iPad 3 is thicker and takes longer to charge. For your information, Tegra 3 is still stuck with single-channel memory while the rest of the industry have moved on to dual-channel memory early this year (look at Snapdragon S4, Exynos 4, OMAP 4)
As much as I dislike the current situation, there is not much of a competition going on right now with SoC. Currently, on the tablet front, Apple has the most powerful SoC on the market (A5X). On the phone side, the A6 chip is also the most powerful SoC on a phone as well. I am severely disappointed at Qualcomm and nVidia for failing behind Apple so far on this front. Not much is known about Tegra 4, but they'd better bring some Kepler to it, otherwise nVidia will become irrelevant.

The responsiveness of a phone

Hello, How comes some phones are more responsive than the others even if they have weaker processors? Why is an iPhone responsiveness higher than an ordinary touchscreen phone? What is the reason of the responsiveness of a phone?
Sorry if you couldn't quite understand my poor ingrish .

There are other factors besides the processor. The amount of free RAM, how well the software was written, what operating system version, etc will all have an effect on the speed of a phone. The iPhone runs a very simple launcher as its OS, plus they have the advantage of being able to design the OS around their phone.

I don't mean how fast it opens app. I mean how fast and easy you can swipe between screens. To the iPhone it seems faster to swipe between screens than on my sensation. Why is that?

I think I know what he's talking about.
Even on my old iPhone 3G, the way you swipe between home screens and overall usage feels a lot more "smooth" (for lack of better word) on iOS devices than any Android device I've ever used before.
My uneducated guess is that Apple runs SpringBoard at 60FPS with Vsync Tribble nuffer???? haha!

iinm ram can be one of the things that can come into play with that. Ios is more simple of an operating system. It's multitasking isn't like androids either. Try to swipe screens while a certain number of apps are open, try swiping again after closing all apps.
Sent from my LG-P769 using Tapatalk 2

Smexhy said:
I don't mean how fast it opens app. I mean how fast and easy you can swipe between screens. To the iPhone it seems faster to swipe between screens than on my sensation. Why is that?
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The iPhones are actually extremely powerful phones. Not only that, but Apple is able to tailor the CPU for the OS which isnt really quite there on Android thanks to multiple devices with different specs.
Sent from my DROID2 using xda app-developers app

wp
Responsiveness ,depends on where the grapical calculations take place. As for WP in the GPU, as for andriod not only in GPU.

With a launcher or custom ROM, you can control quickness of swipe transitions between screens. For instance, TouchWiz on Samsung doesn't have a particularly fast default transition. I am using Apex launcher and I have specified for it to be faster (there's even a faster setting that I don't use because it was... too fast for me).

It mostly depends on the kernel from which the OS was built on. The way iOS was built, it focuses on touch gestures when completing tasks or rendering. When your finger makes contact with the screen, all of the resources focus on that touch which gives the illusion of fluidity in comparison to Android that instead splits it's resources between rendering or completing tasks and touch gestures. It's all on the Kernel level. If we're talking future then no OS will be as fast as BB10 due to QNX being a beast with unlimited potential... That's if BlackBerry implements it right.